Photographic exposure identification means, particularly for aerial cameras



4 Sheets -Sheet 1 MS L A. H. GOREY ET AL EXPOSURE IDENTIFICATION MEANS PARTICULARLY FOR AERIAL CAMERAS Original Filed April 1,. 1942 Nov. 14, 1944.

v PHOTOGRAPHIC Louis DJVadeZ, I K Ed son W 1396.

Nov. 14, 1944. GQREY AL 2,362,814

PHOTOGRAPHIC EXPOSURE IDENTIFICATION MEANS PARTICULARLY FOR AERIAL CAMERAS Original Filed April 1, 1942 4 Sheets-Sheet 2 N fzj dvenfira: S} 8 g 4 Ed ouzlg lzlqlvadzegg .7 son zne zne.

NOV. 14, 19 1 GOREY ET AL 2,362,814 PHOTOGRAPI-IIC EXPOSURE IDENTIFICATION MEANS PARTICULARLY FOR AERIAL CAMERAS Original Filed April 1, 1942 4 Sheets-Sheet 3 Patented New-'14, 1944 UNITED. STATES; PATENT orrlca 2.302.814 Q rno'rooaarmo uxrosuas msu'rrrroarronmzans. ran'rrcurnnrr roaannrar.

causaas,

Archie n. Gorey, Louis D. Nadel, and Edson s. Hineline, Rochester, N. Y., assignors to The- Folmer Grafiex Corporation, Rochester, N. Y., a

corporation of Delaware Driginal application April' 1, 1942, Serial No.

1948, Serial No. 482,238

Divided and this application April 8,

This application is a division of our co-pendilraizapplication Ser. No. 437,240, filed April 1, This invention relates tolphotographic exposure-identitlcation means, particularly for aerial cameras, but not limited to use therewith.

In order that the principle of the invention may be readily understood, we have disclosed a single embodiment thereof in the accompanying drawings, wherein Fig. 1 is a front elevation of the camera showing the position of the stationary handle, and of the operating handlewhen-in position ready for making an exposure;

Fig. 2 is a left side elevation of Fig. 1, showing the position of the identification holder when in place for making an exposure;

Fig. 3 is a top plan view of Fig. 1;

Fig. 4 is a partial top plan view of the camera with themagazine cover and the film pressure pad, film spools and film spool bracket removed to show the exposure aperture, the film recording tab being also shown, the right-hand side of the camera being broken away;

Fig. 5 is a vertical section through the camera, showing the capping gate operatingmechanism, and pressure pad mechanism and the position of the several related parts; I

Fig. 6 is a partial horizontal section through the camera, taken at the focal plane, to show the positionv of the exposure recording tab and holder;

Fig. 7 is a top plan view of the exposure recording tab holder with a recording tab in place;

Fig. 8 is a detail in elevation of the recording tab;

Fig. 9 is a section on an enlarged scale, taken through Fig. 6 on the line 9-4 thereof, showin the position of the recording tab when in place prior to making an exposure; and

Fig. 10 is a cross section on an enlarged scale of Fig. '7 taken on the line l0--l0 thereof, showing the construction of the recording tab holder, a recording tab being in place.

The object of the invention is to provide means to record identification data on the negative at the time of making an exposure.

While the exposure identification means herein claimed may be used in diflerent types of cameras, and while its use is not limited to any 50' tion or other data on each negative at the time of particular type thereof, we have in our said application Ser. No. 437,240 shown it as applied to an aerial camera to which it is particularly adapted. We will therefore briefly refer to certain main parts of such a camera, as shown in Fi s. 1 to 4. 1 I

Referring first to Figs. 1, 2 and 3, therein is disclosed the outside of the camera structure wherein the camera body or housing is indicated at 20 and is provided with a mechanism-housing The camera body 20 is provided with a film-chamber cover 2| held to the camera body 2W knurled head screws 22, 22. Attached to said camera body 20 is a lens cone member 23 by means of screws 24, 24, and to one side of the said cone member 23 is attached a stationary handle structure consisting in part ofa bracket 25 attached to the said lens cone member 22 by screws '26, 26 Attached to the said handle bracket 25 is a handle 21 held to said bracket 25 by means of a screw bolt 28, and it is kept from turning by means of screw 29. The lens cone member 23 is also provided with the usual lens shade member 30 to which is attached a diaphragm scale 3| by means of screws 32, 32. Also attached to said lens cone member 23 is a direct vision view finder 33. preferably of the usual direct vision type, and it is held to the lens cone member 23 by screws 34, 34.

Protruding from the right-hand side of the camera body 20, viewing Fig. 1, is a take-up spool pivot locking member or cap 35. Also protruding from the said right-hand side of the camera body is a film recording tab holder indicated generally at 3G.v Protruding from the left-hand side of the camera body 20, viewing Fig. l, is a shutter speed control knob 31 and a handle boss mem- 'ber 38 to which latter is attached a shutter operating handle 39. Extending from said protruding boss member 38 is a shutter release lever or should be capable of permitting the operator readily tochange data between exposures without fogging any negative. In order'to accomplish this, we have provided relatively simple means for photographing or recording informaexposure, using the light that passes through the lens for making the picture to illuminate the recording medium. The structure of the recording device will best be understood by reference to Figs. 5 to 10.

Reference is first made to Figs. 7 and 8, wherein is shown a top plan view of the stencil holder or film-recording tab holder, indicated generally at 36, and made up as an elongated T-shaped formation of sheet metal, provided with a handle 34I and two horizontally extending members 342, 342, shown in section in Fig. 10. Between said horizontally extending members 342, 342 is a spacer 343, held in place by means of rivets 344, 344, and said members 342 are provided with parallel, lengthwise extending lips 345, 346 shaped or bent around the spacer 343 and which provide a narrow opening for receiving a stencil or tab 341 made of any suitable material such as cellulose acetate and having a translucent surface on which data can be written with an ordinary pencil.

The said stencil or tab 341 is provided with openings 348, shown in Figs. 7 and 8 as engaged by a round head rivet 343 attached to the lip 345 which is provided with notches 350, 350 for the purpose of providing clearance for the rivets 349. The said structure provides ready means for holding the stencil or tab 341 and one which is at the same time easily disengaged therefrom for re- Placement.

To the camera body is attached, as shown in Figs. 1 to 5 and 9, a light trap member made up of a hollow rectangular structure 35I having a retaining plate 352, said parts being held to the camera wall by screws 353, 353. In the hollow space 354 on the member I and a second hollow space 355 of the camera wall are placed two light valves 356, 356 which are desirably substantially the same as the light valves disclosed in the patent to Charles H. Roth, No. 2,056,144.

In Fig. 9, the index card holder is shown in place and therein the stencil or tab 34'! is shown as overlapping the aperture plate 85 and as under the sensitized material 83. The said stencil or tab 34'! passes through a slot 351 of the aperture plate 85 and a second slot 358 in the aperture plate support member, as most clearly shown in Figs. 5 and 9. Over the said slot 358 is positioned a .plate or strip 353 for the purpose of guiding the stencil or tab 34! and holding the aperture plate 85 in position. The said plate 353 is attached to the aperture support member by screws 350, 330 (Fig. 6), and the plate 353 on the opposite side of the camera is similarly attached.

Fig. 6, constituting a horizontal section through a part of the camera casing 20, most clearly indicates the position therein of the stencil holder or film-recording tab holder 35. Therein a glass plate 85a is used in the exposure opening instead of the regular aperture plate 35. The said stencil holder or film-recording tab holder can be placed in position for recording, or can be removed from its position, without admitting light to the sensitized film 83.

In. Fig. 5 the stencil holder or fllm recording tab holder 33 has been entirely removed from the camera and the opening provided therefor has been closed by light valves 353, 355, thus excluding any light from passing to the sensitized material. In order to prevent light passing from the cone 23 of the camera and through the slot in plate I05 (Figs. 1, 2 and 5) receiving the shutter operating arm or lever 253, there is provided, as best shown in Fig. 5, a light guard 3 3I held to the camera wall 25 by screw 352.

In Figs. 5 and 9 we have indicated at I I15 the capping gate support member or plate, at I I3 one of the pressure pad lifting members, at I IS a part of the shutter curtain, and at I24 a curtain idler.

The sensitized sheet is supported in a path im mediately adjoining the plane of the slot-like opening in the camera body through which the stencil holder or film-recording tab holder is inserted into functioning position, so that the stencil or tab may come into direct face contact with the surface of the sensitized sheet, and the data upon the stencil or tab may therefore be made to appear very clearly and in an unblurred condition on the sensitized sheet, which would not be the case if the stencil or tab were substantially spaced from the sensitized sheet. When the several pressure pad lifting members I I3 are lowered in the operation of the camera, the pressure pad presses the sensitized material into actual face contact with the stencil or tab 341, with the described result of securing a clear unblurred record.

Having thus described one illustrative embodiment of the invention, it is to be understood that although specific terms ar employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

We claim:

1. Means for photographically recording data on the exposure area of a sensitized surface at the time of exposure, including a substantially flat stencil or tab holder insertable through an opening in the wall of the camera casing closely adjacent the path of the sensitized surface, said stencil or tab holder consisting of a sheet metal member bent into general T-shaped form to present a handle and two protruding, fiat, parallel members, which latter are insertable through said opening in the wall of the camera casing, and means to secure said two flat members tosether with space between the forward portions of said two members to receive removably a stencil or tab of translucent material, together with means for bringing the sensitized surface and a face of the stencil or tab into contact, after tab insertion,

to provide a clear, unblurred record on said sensitized surface.

2. Means for photographically recording data on an exposure area of a sensitized film at the time of exposure, including a camera the casing whereof is provided at an outer wall with a slotlike through-opening to permit the insertion of a stencil or tab holder, and including in combination such stencil or tab holderof general sheetlike form and having two parallel, slightly spaced members receiving the stencil or tab between them, so as to protrude therefrom into the interior of the camera casing, and on which stencil or tab identifying data may be inscribed, said camera casing having means to support a sensitized sheet in a path immediately adjoining the plane of the slot-like opening in the camera casing, whereby the stencil or tab, while supported by the stencil or tab holder, may come into direct face contact with the surface of the sensitized sheet, so that the data upon the stencil or tab against a face of said stencil or tab, such means including a pressure pad supported directly over the sensitized sheet and also including means permitting the pressure pad to be lowered onto the sensitized surface in the functioning of the camera.

4. A photographic structure in accordance with claim 2, but wherein the said slot-like opening through a wall of the camera casing is in a transverse plane below but in immediate proximity to 10 the path of the sensitized sheet in the camera.

5. A photographic structure in accordance with claim 2, but wherein the wall of the camera body is provided at said slot-like through-opening with a light-trap and with a light-trap member secured to the outer face of the camera body wall and through which light trap and light-trap member the stencil or tab holder is inserted.

ARCHIE H. GOREY. LOUIS D. NADEL. EDSON S. HINELINE. 

